Dear Friends,
Can you help me? I am working with RF Rx & Tx module, connected Rx Data pin with RxD of 8052 and Connected Tx Data pin with TxD of another 8052.
I am unable to interface it means not getting data on receiver side?
Is there any need of Antenna? Is yes then can i make that antenna?
Please help me.
RF 434MHz of both Rx & Tx from HIMARK Company.
Thanks & Regards Ramesh Khokhani.
Hi Per,
Sorry for not clear writing in my first post.
Ya I have connected RF Receiver's Data pin to RxD of Controller. and RF Transmitter's Data to another Controller's TxD Pin so is it correct?
But m still not getting any output.
Thanks.
As noted in this very similar tread - http://www.keil.com/forum/18087/ - this is a hardware issue, and nothing to do with Keil.
Also, discussing connections in words (especially in a foreign language) is not very effective at all - you really need to post a diagram to show it clearly.
So, all in all, this is not a great forum for this discussion.
You might be better to go to http://www.8052.com/forum - with cross-references...
The thing is - I have not read the datasheet for your RF module. The data sheet should contain clear text - or diagarams - showing the data directions of the RX and TX pins. That is the proper way to make sure that you have connected serial out to serial in.
The test I mentioned is not how to design. Measuring the voltage swing on an output is something to do when everything is connected according to the datasheet, but you still don't get any connection. Measuring the swing of the output tells you: - that you don't have any short circuit in the PCB - that you haven't made use of an incorrect schematics symbol, resulting in misnumbering of pins - that a component hasn't been accidentally mounted wrong - possibly rotated. - ...